<?php
/**
 * Created by PhpStorm.
 * User: Celebration-Grey
 * Date: 2017/4/16
 * Time: 14:04
 */

namespace Classes;


class Common
{
    public static function getRand(){
        $length = 6;
        $min = pow(10 , ($length - 1));
        $max = pow(10, $length) - 1;
        return mt_rand($min,$max);
    }

    public static function response(){

    }
}